Antares Region and Rho Ophiuchi (data from 4 different years) (Carastro)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: 19 Sco · 20 Sco) · 21 Sco) · 22 Sco · 5 Oph · Al Niyat (σ Sco · Alniyat I · Cor Scorpii · IC 4603 · IC 4604 · IC 4605 · Kalb al Akrab (α Sco · M 4 · NGC 6121 · NGC 6144 · The star Alniyat · The star Antares · The star i Sco · The star ο Sco · The star ρ Oph · Vespertilio · rho Oph Nebula

Antares Region and Rho Ophiuchi (data from 4 different years), Carastro

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Antares Region and Rho Ophiuchi (data from 4 different years)

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Antares Region and Rho Ophiuchi (data from 4 different years)

Taken over several years. Twice in Spain and twice in East Sussex.

Spain 2017 DSLR and cheap camera lens and Ioptron skytracker. 4 hours
Spain 2019 same set up but with a luminance filter and Mono CCD camera 2 hours
I wasn't happy with either as the cheap camera lens produced horrible stars.

Having bought a Samyang 135mm lens at the end of 2019, I decided to try to get better luminance from the campsite I visit from time to time in East Sussex, but it is VERY low from the UK. This time I could take my full rig with me and do longer guided subs. HEQ5, Atik460EX and Samyang 135mm lens.

2022 I captured some luminance with better stars of the Antares region, but half of Rho Ophiuchi was chopped off. 1 hour 20mins
https://www.astrobin.com/sz1393/B/
last week April 2023 I captured the area around Rho Ophiuchi and made a mosaic thus completing the image at last. 1 1/2 hours. Of course we can always use more data but given my VERY limited opportunities I think this will be the final version.

Total of 8h 50mins

Latest version now with some star reduction to reduce the 1000s of tiny stars

Final
Original
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Description: Now with further star reduction.

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Antares Region and Rho Ophiuchi (data from 4 different years)

Antares Region and Rho Ophiuchi (data from 4 different years)

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Antares Region and Rho Ophiuchi (data from 4 different years)

Antares Region and Rho Ophiuchi (data from 4 different years)

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